We divide 25394577 by 80
We want to figure out the number of times 25394577 can be divided by 80.

Let's proceed to step 1:
80 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 80

On to step 2:
80 can be fit into 25 0 times, resulting in a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Take the next digit (3) from the dividend and append it to 25, then repeat: 253 / 80

Let's proceed to step 3:
If we divide 253 by 80, we get 3 and a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 13 after subtracting 240 from 253.
Include the next digit (9) from the dividend after 13, then repeat: 139 / 80

On to step 4:
139 divided by 80 is 1 with a remainder of 59.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Subtract 80 from 139 to get 59.
Include the next digit (4) from the dividend after 59, then repeat: 594 / 80

Going ahead to step 5:
If we divide 594 by 80, we get 7 and a remainder of 34.
The next digit of our result is 7. 
Result so far: 317.0
Subtracting 560 from 594 leaves us with 34.
Fetch the next digit (5) from the dividend, attach it to 34 and continue: 345 / 80

Step 6:
The number 80 fits into 345 4 times, leaving a remainder of 25.
Write down 4 as next digit of the result. 
Result so far: 3174.0
The remainder is 25 after subtracting 320 from 345.
Bring next digit (7) of the dividend behind the 25 and repeat the process: 257 / 80

Step 7:
When dividing 257 by 80, we get 3 with a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 31743.0
The remainder is 17 after subtracting 240 from 257.
Grab the next digit (7) from the dividend, add it to 17, then carry on: 177 / 80

On to step 8:
When dividing 177 by 80, we get 2 with a remainder of 17.
Put 2 as the next digit of the answer. 
Result so far: 317432.0
Subtract 160 from 177 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 9:
The number 80 fits into 170 2 times, leaving a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 317432.2
Deduct 160 from 170 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
80 can be fit into 100 1 times, resulting in a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 317432.21
The remainder is 20 after subtracting 80 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
The number 80 fits into 200 2 times, leaving a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 317432.212
Subtract 160 from 200 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 317432.2125
Deduct 400 from 400 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 13:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 317432.2125
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 14:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 317432.2125
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 317432.2125, and the remainder is 0.0.